To answer this question, we need to understand the context of Bhishma and his choice of time for his death.
Bhishma was a prominent character in the Hindu epic Mahabharata. He was blessed with a boon that allowed him to choose the time of his death. According to the epic, Bhishma chose to die during the auspicious period known as "Uttarayan."
Option A) Bhramakaal - This option is incorrect because Bhramakaal refers to the period of the day when divine activities are performed, usually before sunrise.
Option B) Sainkaal - This option is incorrect because Sainkaal refers to the time around sunset, which is considered to be a transitional period between day and night.
Option C) Suprabhaat - This option is incorrect because Suprabhaat refers to the early morning period, around sunrise, when prayers and rituals are performed.
Option D) Uttarayan - This option is correct because Uttarayan refers to the period when the sun starts its northward journey, marking the beginning of longer days. It is considered an auspicious time, and Bhishma chose this time for his death.
Therefore, the correct answer is option D) Uttarayan.